Answers for "sql add new column"

alter table add column

ALTER TABLE table_name
ADD column_name datatype;

sqlserver add column to table

ALTER TABLE dbo.doc_exa 
ADD column_b VARCHAR(20) NULL, 
	column_c INT NULL ;

alter table add column

ALTER TABLE table
ADD COLUMN column VARCHAR (255) NOT NULL AFTER column;

alter table add column

ALTER TABLE table_name 
ADD column_name datatype;

sql server add column

ALTER TABLE dbo.doc_exa ADD column_b VARCHAR(20) NULL, column_c INT NULL ;

Add column in table

ALTER TABLE table_name
  ADD column_name column_definition;